Water-heater



E. T. CUHRAN'.

. WATER HEATER. APPLICATION msn Junge. 191s.

1,397,268, yawmedNov. 15,1921.

EDM@ TZLMAM ara EDWARD T. CURRAN, CVE DETROIT, IJIICHIGAN.

WATER-HEATER.

hamaca.

Application filed June 6, 1918.

. others skilled in the art to which it pertains to make and use thesame, reference being had to the accompanying drawings, which form apart of this specification.

My invention relates to water heaters wherever heaters and for whateversame may be used or adapted to. It consists in the peculiar structureformation combina- .tion and arrangements hereinafter -described.

In the drawings:

Figure l is an elevational view of the outer shell of the water heateras assembled.

Fig. Q is a vertical section on the line 2-2 of Fig. l.

Fig. 3 is a cross section on the line 3-3 of Fig. 2.

Similar letters refer to similar parts.

A is an outer shell extending below an inner shell B. The shellB isspaced from the shell A thus providing a water space or jacketsurrounding the whole heater. D is a burner tube which may be of anyconvenient type and which is controlled in the usual manner. E is awater inlet pipe controlled by a three-way cock which turned in onedirection leads from the water passage Gr to the inlet E and turned inanother direction leads to an outlet H and also closes off the waterinlet Gr. By this means the heater may be blown off at any time. Theinlet pipe G leads to an internal water system made up in the followingmanner: A series of water chambers J consisting of metal lens shapedreceptacles united at their edges by stand pipesto a series of hollowflattened rings' K preferably formed by welding metal pieces together ofsuch form that when united they form flattened tubes. Each of thechambers J J are inclined at an angle from the horizontal, as shown,sutficiently to secure drainage and each of the hollow tubes K K, exceptthe top on-e, are also inclined at an angle for the same purpose. Whenassembled the angle of the receptacle J J and the tubes K K are opposedand the higher edge of the chamber J is united. with the lower Vportionof the tube K,

Specification of Letters Patent.

Patented Nov. i5, i921.

serial no. 238,428.

as shown partly in section in Fig. 2. At one point L the lower tube Kcommunicates with the water jacket and the higher tube K alsocommunicates with the water jacket upon the opposite side at the pointM. An outlet N is provided for the expulsion of the heated contents. Thetubes K are large enough in diameter so that they come substantially incontact with the inner shell B at their cuter edges, as shown at P P,whereas the receptacles J are about two-thirds of the diameter of theinner shell B and when arranged, as shown in the drawings Fig. 2, itwill be seen that the products of combustion can pass under and aroundthe receptacle J J and through the interior of the hollow rings K Kultimately in a zigzag course as shown by the arrows.

It is obvious that this device might be heated with any source of heatbut I have shown for that purpose a gas jet D. A small door D in theshell affords meansfor ignition and for observation and may have a sheetof mica in the door if desired.

I close off the bottom by the curved diaphragm R and allow thein-coniing air for draft purposes to pass in through small holes S S, asmany as may be desired and having dampers F F if desired for adjustmentin the shell of the device below the water jacket. This curved diaphragmin the bottom and adjacent to the burner as it is heated by radiant heatfrom the flames above it vaporizes any moisture of condensation whichmay drip down in the bottom of the heater due to the products ofcombustion impinging upon the cold surfaces at the initial stages ofheating and also keeping the bottom of the heater dry from any moisturethat may cond-ense after the burner is turned off. The products ofcombustion pass through a chimney T.

The operation of my invention is clearly understood from the foregoingdescription By this means I am enabled to produce a very efficientsimple and cheap heater, there being no parts of cast iron and all theparts are welded or brazed.

Having thus described my invention, what I desire to claim is:

1. In a water heater, a heating element comprising a series of annularand lenticular water chambers arranged in superposed alternate relationand connected in water circulation and having a water inlet to the.lowermost of said chambers and a water out- CII let from the uppermostof said chambers with the lenticular chambers inclining in a directionfrom the horizontal and the annu lar chambers inclining in an oppositedirection, and a combustion chamber inclosing said heating elementhaving an opening in the top for escape of the products of combustionand an opening in the bottom for the passage of a gas burner, the sideWalls of said chamber being arranged as a Water jacket connected incirculation With the heating element at a point Within the inlet andoutlet of said element and to constitute a part of said element, andsaid chamber being arranged With a series of circumferentially disposedopenings to provide an air supply for the burner.`

2. In a Water heater, the combination with a combustion chamber havingan opening in the bottom for the passage oi' a gas burner and an openingin the top for the escape of the products of combustion, of a heatingelement arranged in said chamber comprising a series of annular andlenticular shaped Water chambers arranged in superposed relation, saidlenticular chambers being of smaller diameter than the interior of thecombustion chamber andL the annular chambers of substantially the samediameter as the interior of the combustion chamber; means to connectsaid chambers in Water circulation; a Water inlet to the lowermost oi'said chambers arranged to be connected to a source of supply; and aWater outlet from the uppermost of said chambers;

3. In a Water heater, the combination of a combustion chamber; a heatingelement in said acket comprising a seriesoif lenticular shaped Waterchambers of less diameter than the interior of the Water jacket and aseries of annular Water chambers superposed to and alternating with thelenticular shaped chambers and of substantially theA same diameter asthe interior of the Water jacket, said annular and lenticular chamberseX- tending at acute angles to each other; means to connect saidchambers in Water circulaw tion with each other and the jacket; a Waterinlet to the loWermost lenticular chamber;

and a Water outlet from the uppermost annular chamber.

In testimony whereof, sign `this speciication. I

EDWARD T. CURRAN.

